Roofing.



No. 652,|5D. Patented lune I9, i900. F. W. TERPENING.

ROOF ING.

(Application led June 3, 1899.) (Nn Model.)

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y being had to the accompanying drawings,

l roofing.

; UNITED STATES PATENT OFFICE.

FRANK TERPENING, OF ST. LOUIS, MISSOURI.

ROOFING.

SPECIFICATION forming part of Letters Patent No. 652,150, dated .Tune 19, 19Go. Application ined me 3, 1899. serial No. 719,191. (No model.)

To all 1077/077@ t may cm2/067472,:

Be it known thatI, FRANK W. TERPENING, a citizen of the United States, residing at the cityof St. Louis, in theState of Missouri, have invented a certain new and useful Improv`ement in Roofing, of which the following is a full, clear, and exact description, reference forming part of this specification.

My invention relates to the class of rooting that is made of a number of sheets or layers of suitable material saturated with asphalt or other suitable subst-ance to make them waterproof and to cause a thin layer of fine gravel to adhere to the upper surface of the In this class ot' rooiin g much trouble has been experienced in obtaining a secure waterproof joint between the sheets; and it :is the object of my invention to provide for a perfect joint between the sheets.

My invention consists in features of uov elty hereinafter fully described, and pointed out iu the claim.

Figure I is a perspective view showing a section of my improved roofing. Fig. II is an enlarged sectional view. Figs. III and IV are detail views made on an exaggerated scale to illustrate the manner ot' making the roofing.

Referring to the drawings, a piece of my improved roofing is shown. l represents a sheet of tarred wool felt, 2 a sheet of wool felt, and 3 a sheet of canvas. The sheets 2 and 3 in the manufacture of the roong are run through a bath of asphalt or other suitable substance to render them impervious to water, and coming from the bath they adhere together, and the sheet l is caused to adhere to the sheet 2, except at one side edge, as shown at A, Fig. I, where the sheets l and 2 are prevented from adhering by means of a strip et, placed against the under side of the sheet 2, and which is caused to adhere thereto by means of the asphalt. The strip 4. preferably consists of a very thin paper and is used only for the purpose of preventing the strips l and `2 from adhering together at one side edge of the roofing.

5 represents a coating of gravel that is applied to the upper surface of the sheet 3 while the asphalt is still hot, so as to cause it to adhere. The opposite side edge B of the sheet has'a margin that is not coated with gravel, and to prevent the gravel from adhering thereto as it is sprinkled upon the sheet 3 as it comes from the bath of asphalt I run a narrow strip 6 of thin paper along this edge of the roofing, which adheres to the sheet 3 and prevents the gravelfrom adhering.

When the roofing is to be used, the side edge B of one strip of roofing is placed in the gap between theV side edgesof the sheets 1 and 2, (the upper surface of 4the side edge of sheet l having been rst coated with hot asphalt,) and nails are driven through the side edge B aud the sheet l into the supports beneath. A coating of hot asphalt is then applied to the surface of the side edge B. The side edges of the sheets 2 and 3 are then closed down on the top of the surface and are caused to adhere thereto by means of the asphalt. The'heads of the nails are thus covered by means of the side edges of the sheets 2 and 3, which avoids any danger of leakage around the nails,and I thus provide a perfect joint between' the side edges of the roofing. By using the strips 4 and 6 of thin paper or other suitable thin material very little additional thickness is produced at the joints, while there is no danger of the gravel adhering to the surface of the side edge B or of the side edge A of the sheet l adhering to the asphaltcoated surface of the side edge of sheet 2, so that the sheets l and 2 can be readily opened at their side edges when the roofing is to be applied.

While I prefer to use wool felt for the sheets l and 2 and canvas for sheet 3, yet other wellknown material may be used. It is also apparent that the joint I have described may be applied to the ends as well as to the sides of the sheets. l

I claim as my invention- A roofing comprising a lower sheet treated with waterproof substance and having a free edge, an intermediate strip treated with wa terpoof substance and having a free edge located over the free edge of the lower sheet, a

protecting-strip secured to the free edge of the intermediate strip, te prevent it adhering to the free edge of the lower strip until the roofing is used, the upper sheet treated with waterproof substance, and having a coating of gravel on its surface leaving a free edge at the opposite edge to the Jfree edges of the lower and intermediate strips, and a protecting-strip secured to the free edge of the upper sheet; substantially as described.

FRANK NV. TERPENING. In kpresence of- E. S. KNIGHT, G. A. TAUBERSCHMIDT. 

